/Engine/Source/Editor/UnrealEd/Public/WorkflowOrientedApp/WorkflowTabManager.h
Registers a factory with this set - must be unique.
void RegisterFactory ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< class [FWorkflowTabFactory](API\Editor\UnrealEd\WorkflowOrientedApp\FWorkflowTabFactory) > Factory )